dropdown show hide div event in jsp

<select onchange="showMe(this);">
    <option>Hide</option>
    <option>Show</option>
</select>

<input id="idShowMe" style="display: none">
    <b>Hello world!</b>
</input>
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<select onchange="showMe(this);">
    <option>Hide</option>
    <option>Show</option>
</select>

<input id="idShowMe" style="display: none">
</div>
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